Skip to main content
Article thumbnail
Location of Repository

Spatial Patterns of Iron- and Methane-Oxidizing Bacterial Communities in an Irregularly Flooded, Riparian Wetland

By Juanjuan Wang, Sascha Krause, Gerard Muyzer, Marion Meima-Franke, Hendrikus J. Laanbroek and Paul L. E. Bodelier

Abstract

Iron- and methane-cycling are important processes in wetlands with one connected to plant growth and the other to greenhouse gas emission, respectively. In contrast to acidic habitats, there is scarce information on the ecology of microbes oxidizing ferrous iron at circumneutral pH. The latter is mainly due to the lack of isolated representatives and molecular detection techniques. Recently, we developed PCR–DGGE and qPCR assays to detect and enumerate Gallionella-related neutrophilic iron-oxidizers (Ga-FeOB) enabling the assessment of controlling physical as well as biological factors in various ecosystems. In this study, we investigated the spatial distribution of Ga-FeOB in co-occurrence with methane-oxidizing bacteria (MOB) in a riparian wetland. Soil samples were collected at different spatial scales (ranging from meters to centimeters) representing a hydrological gradient. The diversity of Ga-FeOB was assessed using PCR–DGGE and the abundance of both Ga-FeOB and MOB by qPCR. Geostatistical methods were applied to visualize the spatial distribution of both groups. Spatial distribution as well as abundance of Ga-FeOB and MOB was clearly correlated to the hydrological gradient as expressed in moisture content of the soil. Ga-FeOB outnumbered the MOB subgroups suggesting their competitiveness or the prevalence of Fe2+ over CH4 oxidation in this floodplain

Topics: Microbiology
Publisher: Frontiers Research Foundation
OAI identifier: oai:pubmedcentral.nih.gov:3284728
Provided by: PubMed Central
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://www.pubmedcentral.nih.g... (external link)
  • Suggested articles

    Citations

    1. (2001). A further biodiversity index applicable to species lists: variation intaxonomicdistinctness.Mar.Ecol.
    2. (2001). A mechanistic Frontiers
    3. (2011). accepted: 06
    4. and Dedysh,S.N.(2011).Acetateutilization as a survival strategy of peatinhabiting Methylocystis spp.
    5. (2004). ARB: a software environment for sequence data.
    6. (2001). Available at: http://cran.r-project.org/
    7. (2011). Beyond carbon and nitrogen: how the microbial energy economy couples elemental cycles in diverse ecosystems.
    8. (2010). Biogeochemistry of paddy soils.
    9. (2010). Biogeography of wetland rice methanotrophs.
    10. (2010). Biphasic kinetics of a methanotrophic community is a combination of growth and increased activity per cell.
    11. (2010). Characterization of bacterial community structure in a drinking water distribution system during an occurrence of Red Water.
    12. (2007). Characterization of neutrophilic Fe(II)-oxidizing bacteria isolatedfromtherhizosphereofwetland plants and description of Ferritrophicum radicicola gen. nov sp nov.,and Sideroxydans paludicola sp nov.
    13. (2011). Climate-CH4 feedback from wetlands and its interaction with the climate-CO2 feedback.
    14. (2004). Community analysis of methanogenic archaea within a riparian flooding gradient.
    15. (2006). Differential effects of nitrogenous fertilizers onmethane-consumingmicrobesin rice field and forest soils.
    16. (2011). Distribution and diversity of Gallionella -like neutrophilic iron oxidizers in a tidal freshwater marsh.
    17. (2009). Diversityofironoxidizersinwetland soils revealed by novel 16S rRNA primerstargetingGallionella-related bacteria.
    18. (2011). Ecology of Neutrophilic Iron-Oxidizing Bacteria in Wetland Soils.
    19. (2005). Effect of salinity on temporal and spatial dynamics of ammonia-oxidising bacteria from intertidal freshwater sediment.
    20. (1977). Energy conservation in chemotrophic anaerobic bacteria.
    21. (2003). Enumeration of Fe(II)-oxidizing and Fe(III)-reducing bacteria in the root zone of wetland plants: implications for a rhizosphere iron cycle.
    22. (2008). Environmental and anthropogenic controls over bacterial communities inwetlandsoils.Proc.Natl.Acad.Sci.
    23. (2009). Environmental and spatial characterisation of bacterial community composition in soil to inform sampling strategies.
    24. (2009). Environmental, genomic and taxonomic perspectivesonmethanotrophicVerrucomicrobia.
    25. (2011). Hydrology is reflected in the functioning and community composition of methanotrophs in the littoral wetland of a boreal lake.
    26. (2010). Impacts of inter- and intralaboratory variations on the reproducibility of microbial community analyses.
    27. (2011). Interactions between nitrogenous fertilizers and methane cycling in wetland and upland soils.
    28. (2009). Iron oxyhydroxide mineralization on microbial extracellular polysaccharides.
    29. (1997). Isolation and characterization of novel iron-oxidizing bacteria that grow at circumneutral pH.
    30. (2002). Life at the energetic edge: kinetics of circumneutral iron oxidation by lithotrophic iron-oxidizing bacteria isolated from the wetland-plant rhizosphere.
    31. (2006). Linking soil process and microbial ecology in freshwater wetland ecosystems.
    32. (2008). Magnitude and biophysical regulators of methane emission and consumption in the Australian agricultural, forest, and submerged landscapes: a review.
    33. (2009). Mapping field-scale spatial patterns of size and activity of the denitrifier community.
    34. (2002). Mariprofundus ferrooxydans PV-1 the first genome of a marine Fe(II)
    35. (2010). Methane emission from natural wetlands: interplaybetweenemergentmacrophytes andsoilmicrobialprocesses.Aminireview.
    36. (2001). Methane oxidation and the competition for oxygen in the rice rhizosphere.
    37. (2010). Methanotrophs and copper.
    38. (2007). Methylocystis heyeri sp nov., a novel type II methanotrophic bacterium possessing “signature” fatty acids of type I methanotrophs.
    39. (2001). Microbial community dynamics in Mediterranean nutrient-enriched seawater mesocosms: changes in the genetic diversity of bacterial populations.
    40. (1997). Microbial Fe(III) reduction in subsurface environments.
    41. (2009). Microbial iron redox cycling in a circumneutral-pH groundwater seep.
    42. (2003). Multi-scale variation in spatial heterogeneityformicrobialcommunity structureinaneasternVirginiaagricultural field.
    43. (1998). Numerical Ecology.
    44. (2008). of rice roots to methane emission.
    45. (1964). Oxygen diffusion from roots of some British bog plants.
    46. (1993). Profiling of complex microbialpopulations by denaturing gradient gel-electrophoresis analysis of polymerase chain reaction-amplified genes-coding for 16s ribosomalRNA.
    47. (1998). Quantifying structural redundancy in ecological communities.
    48. (2001). Quantitative and qualitative microscale distribution of bacteria in soil.
    49. (2003). Quantitative detection of methanotrophs in soil by novel pmoA-targeted real-time PCR assays.
    50. (2010). R: a Language and Environment for Statistical Computing.
    51. (1998). Rapidpurificationof DNAfromsoil for molecular biodiversity analysis.
    52. (2011). Recovery of methanotrophs from disturbance: population dynamics,
    53. (2003). Redox chemistry in the root zone of a salt marsh sediment in the Tagus Estuary,
    54. (2011). Relevance of soil physical properties for the microbial oxidation of methane in landfill covers.
    55. (2007). Returning to their roots: iron-oxidizing bacteria enhance short-term plaque formation in the wetland-plant rhizosphere.
    56. (2011). Spatial distribution of ammoniaoxidizing bacteria and archaea across a 44-hectare farm related to ecosystem functioning.
    57. (2009). Spatial patterns of bacterial taxa in nature reflect ecological traits of deep branches of the 16S rRNA bacterial tree.
    58. (2012). Spatial patterns of iron and methane
    59. (2012). Spatial patterns of iron- and methane-oxidizing bacterial communities in an irregularly flooded, riparian wetland.
    60. (2010). Spatial patterns of soil attributes and components in a mangrove system in Southeast Brazil (Sao Paulo).
    61. (1993). Statistics for Spatial Data.
    62. (2012). Structural and functional response of methane-consuming microbial communities to different flooding regimes in riparian soils.
    63. (2011). What’s new is old: resolving the Identity of Leptothrix ochracea using single cell genomics, pyrosequencing and FISH.

    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.